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Switzerland authorizes removable PV plant on railway track
(www.pv-magazine.com)
This is a most excellent place for technology news and articles.
It's close though, random shit gets dragged, kicked, dropped, etc all the time by trains.
A chain , cable, or wire comes loose on a car and goodbye panels and like all of them ...
If a chain, cable, or wire comes loose on a car then the panels are the least of anyone's worries. Also expect emergency brakes to kick in automatically. This is a train, not a bicycle.
I don't why they don't overhang them on frames. It'd cost more upfront, but hell alot cheaper than replacing the broken panels all the time.
where are you from and when have you last seen a train?
If that happens you got bigger things to worry about. When did you last see a train dragging along debris?
They could pair that with sensors / cameras for hanging things. These are already being produced and installed on tracks.